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TECHNICAL PAPERS

Analysis of the Flow Through a Vented Automotive Brake Rotor

[+] Author and Article Information
David A. Johnson, Bryan A. Sperandei, Ross Gilbert

Department of Mechanical Engineering, University of Waterloo, Waterloo, ON N2L 3G1 Canada

J. Fluids Eng 125(6), 979-986 (Jan 12, 2004) (8 pages) doi:10.1115/1.1624426 History: Received October 01, 2001; Revised June 04, 2003; Online January 12, 2004
Copyright © 2003 by ASME
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References

Figures

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Vented rotor showing sections removed for internal PIV measurements
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Photograph of a typical front wheel automotive assembly excluding the rim and tire
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Orientation of the laser and camera for X-Y plane PIV measurements
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Absolute mean velocity plot of the inlet flow (X-Z plane at Y*=0), N=684 rpm, dimensionless velocity vector=0.1, contours of isovelocity 0.008 dimensionless velocity units, direction of rotation is out of the page
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Absolute mean velocity plot of the inlet flow (X-Y plane at Z*=0.1), N=684 rpm, dimensionless velocity vector=0.3
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Relative mean velocity plot of the inlet flow (X-Y plane at Z*=0.1), N=684 rpm, dimensionless velocity vector=0.4
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(a) (Top) relative mean velocity vector plot of the internal flow (X-Y plane at Z*=0), N=684 rpm, dimensionless velocity vector=1.0. (b) (Bottom) relative mean velocity contour plot of the internal flow (X-Y plane at Z*=0), N=684 rpm.
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Absolute mean velocity plot of the exit flow (X-Y plane at Z*=0, triggered), N=684 rpm, dimensionless velocity vector=1.0. Contours of isovelocity 0.08 dimensionless velocity units.
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Absolute mean velocity plot of the exit flow (X-Y plane at Z*=0, untriggered), N=684 rpm, dimensionless velocity vector=1.0. Contours of isovelocity 0.08 dimensionless velocity units.
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Absolute mean velocity plot of the exit flow (X-Z plane at Y*=0), N=684 rpm, dimensionless velocity vector=0.3. Contours of isovelocity 0.05 dimensionless velocity units.
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Absolute mean velocity plot of the exit flow (X-Z plane at Y*=0, single instantaneous vector map), N=684 rpm, dimensionless velocity vector=0.3
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Nondimensionalized turbulent kinetic energy plot of the internal flow (X-Y plane at Z*=0), N=684 rpm
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Inlet velocity profile used to calculate the mass flow entering the rotor, N=684 rpm. Rotation out of the page. Dimensionless velocity vector=0.1.
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Exit velocity profile used to calculate the mass flow exiting the rotor, N=684 rpm. Dimensionless velocity vector=0.3.
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High resolution vector plot of internal flow (pressure side vectors removed for clarity), N=684 rpm. Dimensionless velocity vector=0.2.
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Relationship between the maximum exit flow velocities and the rotational speed of the rotor

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